Brussels · Belgium

Mobile app development in Brussels, Belgium

Devside designs, builds and ships iOS, Android and web apps for Belgian companies — from Brussels, since 2009.

Based in Brussels, we take Belgian SMEs, independents and large organisations from idea to launch on the App Store and Google Play. We built Belgium's first iPhone app back in 2009, and have since delivered products for clients such as Le Chat de Geluck, DKV, the Belgian Olympic Committee and Monizze.

Working with a local agency changes a lot: conversations in French and Dutch, real knowledge of the Belgian market and its constraints (languages, GDPR, local payment methods), and the option to meet in person. We stay reachable, and we look after your products long after launch.

What we do

Native iOS & Android apps, and web apps
UX/UI design, development, publishing and maintenance
Useful, measured AI integration, when it genuinely helps
Support in French and Dutch

Testimonials

What our clients say.

“

Particularly efficient — that's the phrase that comes to mind. We've worked together for over ten years; they develop and maintain our app. A real asset for any company.

Kurt ChristiaenDKV Belgium

“

Flexibility, responsiveness, solutions on the table — exactly what we needed for Coronalert.

Bart PreneelProfesseur, KU Leuven

“

A responsive team, innovative ideas, relevant advice and great professionalism.

Gilles Ver ElstProduct Manager, Monizze

“

A great discovery since 2017 — effective and professional. We're still working together. A fantastic team.

Sébastien CurnelCEO, Brand Partners

“

Skill, knowledge, creativity … and all of it up-to-date!

Pierre KrollArtist · Cartoonist

“

The creativity and the professionalism of Jean-Paul.

Adrian SchuitenProject Manager, Geluck

Got a digital project in mind?

A free 30-minute intro call. We'll talk through your idea and the best way to make it real.

Book a call